Process for manufacturing rim by using T-shaped plate

Abstract

The invention relates to a process for manufacturing a rim by using a T-shaped plate, and relates to the field of wheel machining. The technology for manufacturing the rim through the T-shaped plate comprises the steps that an initial blank is manufactured through a T-shaped aluminum plate; performing edge rolling, flattening and leveling to form a second flat surface, and performing welding; the welding position is polished and rounded to form a formed cylinder material, and the two end faces in the axial direction are cut off to form an end-cut cylinder material; the end-cut cylinder material is subjected to trumpet-shaped expansion deformation, an initial rim is formed, and the precision of the rim in the manufacturing process is improved; spinning is conducted, specifically, spinning forming is conducted on the initial rim, and a first semi-finished rim is formed; the first semi-finished rim is subjected to solid solution aging treatment, the rim manufacturing time is shortened, and a second semi-finished rim is formed through secondary spinning treatment; and then machining treatment is conducted, a finished rim is formed, and the size parameters of the finished rim are detected. The rim manufacturing precision can be improved, the rim manufacturing time can be shortened, the yield can be improved, and the cost can be saved.

Description

Technical Field

[0001] The present invention belongs to the field of wheel processing, and particularly relates to a process for manufacturing a rim using a T-shaped plate. Background Art

[0002] After the ordinary plate is spun and formed according to the existing process, the processing of the connecting plate or the welding boss cannot be realized. For example, the rim is spun and formed with an ordinary plate, and then the rim is cut, and an aluminum ring is welded in the middle, and the connecting plate or the welding boss is processed through the aluminum ring material. There are many processes. After the rim is spun and formed, it is necessary to cut, process the composite port, process the aluminum ring, and then composite and ring-weld with the aluminum ring, resulting in a long production cycle and an increase in production cost; the material cost increases. After the rim is spun and cut, the aluminum ring is processed, and after composite and ring-weld, there is more redundant material, resulting in an increase in material cost; the product is composite and welded twice, increasing the cumulative error of the product, and it is difficult to guarantee the accuracy after processing; the product is welded twice, reducing the strength, and increasing the risk of air leakage or crack in subsequent use.

[0003] Therefore, designing a process for manufacturing a rim using a T-shaped plate, which can improve the accuracy of manufacturing the rim, shorten the manufacturing time of the rim, improve the yield rate, and save costs, is an urgent problem to be solved at present. Summary of the Invention

[0004] Based on this, the present invention aims to overcome the defects of the prior art and provides a process for manufacturing a rim using a T-shaped plate. An initial blank is made of a T-shaped aluminum plate; then it is coiled, flattened, and leveled to form a second flat surface; the second flat surface is welded; then the welded part is polished and restored to a circular shape to form a formed cylindrical blank; both end faces of the formed cylindrical blank in the axial direction are cut off to form an end-cut cylindrical blank; the end-cut cylindrical blank is flared and expanded to form an initial rim, improving the accuracy in the rim manufacturing process; it is spun, the initial rim is spun and formed to form a first semi-finished rim; the first semi-finished rim is subjected to solution aging treatment to shorten the manufacturing time of the rim, and then subjected to secondary spinning treatment to form a second semi-finished rim; the second semi-finished rim is subjected to machining treatment to form a finished rim, and its dimensional parameters are detected to improve the yield rate and save costs. It can improve the accuracy of manufacturing the rim, shorten the manufacturing time of the rim, improve the yield rate, and save costs.

[0005] The first technical solution provided by the present invention:

[0006] A process for manufacturing a rim using a T-shaped plate, comprising:

[0007] Blanking, cutting the T-shaped aluminum plate according to a preset size to form an initial blank;

[0008] Rolling into a circle: The initial blank is curled inward to form a cylindrical shape, creating an initial cylindrical workpiece. The two ends of the initial cylindrical workpiece are closed, and the raised part of the initial blank is located on the inner circle of the initial cylindrical workpiece.

[0009] Flattening: The closed ends of the initial cylindrical workpiece are flattened to form a first flat surface.

[0010] Levelling: The first flat surface is levelled to form a second flat surface, and the middle gap of the second flat surface is ≤ 0.3 mm.

[0011] Cleaning: The second flat surface is cleaned to remove dirt.

[0012] Butt welding: A butt welder is used to weld the cleaned second flat surface to form a welded cylindrical workpiece.

[0013] Grinding: The welded part of the welded cylindrical workpiece is ground.

[0014] Restoring to a circle: The ground welded cylindrical workpiece is restored to a circular shape to form a formed cylindrical workpiece.

[0015] End cutting: The two axial end faces of the formed cylindrical workpiece are cut off to form an end-cut cylindrical workpiece.

[0016] Flaring and bulging: The end-cut cylindrical workpiece is expanded into a flared shape to form an initial rim.

[0017] Spinning: The initial rim is spun into shape to form a first semi-finished rim.

[0018] Heat treatment: The first semi-finished rim is solution-aged and then subjected to secondary spinning to form a second semi-finished rim.

[0019] Machining: The second semi-finished rim is machined to form a finished rim.

[0020] Inspection: The dimensional parameters of the finished rim are inspected.

[0021] Further, in the flaring and bulging step, it includes:

[0022] Measuring the initial diameter D of the end-cut cylindrical workpiece 0 , measuring the length L of the end-cut cylindrical workpiece, and calculating the theoretical diameter D of the initial rim through the following formula 理 , D 理 = D 0 + k × ΔP × L, where k represents the coefficient related to the material and ΔP represents the applied pressure change;

[0023] Measuring the actual diameter D of the initial rim 实 , calculating the actual diameter D of the initial rim 实 and the theoretical diameter D of the initial rim理 The precision error q

[0024] Judge whether the precision error q is less than 0.1%; if the precision error q is less than or equal to 0.1%, output the first precision signal; if the precision error q is greater than 0.1%, output the second precision signal.

[0025] Further, in the flaring and bulging step, it includes:

[0026] Measure the force F applied to the end-cut cylindrical blank, measure the force-bearing area A of the end-cut cylindrical blank, and calculate the applied pressure change ΔP according to the formula

[0027] Receive the first precision signal, then determine that the actual diameter D of the initial rim 实 is correct, and output a stable signal to keep the force F applied to the end-cut cylindrical blank stable; receive the second precision signal, then determine that the actual diameter D of the initial rim 实 is incorrect, and output an adjustment force signal to adjust the force F applied to the end-cut cylindrical blank.

[0028] Further, in the flaring and bulging step, it also includes:

[0029] Measure the flaring angle θ of the initial rim 1 , compare it with the preset flaring angle θ of the initial rim 2 , calculate the angle deviation δ between the flaring angle θ of the initial rim 1 and the preset flaring angle θ of the initial rim 2 , where

[0030]

[0031] Judge whether the angle deviation δ is less than 0.1%; if the angle deviation δ is less than or equal to 0.1%, output the first deviation signal; if the angle deviation δ is greater than 0.1%, output the second deviation signal.

[0032] Further, in the flaring and bulging step, it includes:

[0033] Receive the first deviation signal, then determine that the flaring angle θ of the initial rim 1 is correct, and send a passing instruction to enable the spinning step; receive the second deviation signal, then determine that the flaring angle θ of the initial rim 1 is incorrect, and send a pause instruction, and adjust the flaring angle θ of the initial rim 1 ;

[0034] According to the pause instruction, judge whether the flaring angle θ of the initial rim 1 is too large or too small; if the flaring angle θ of the initial rim 1If it is too large, perform a forward flaring correction on the initial rim; if the flaring angle θ of the initial rim 1 is too small, perform a reverse flaring correction on the initial rim.

[0035] Furthermore, in the detection step, it includes:

[0036] Measure the outer diameter R of the finished rim 1 , measure the inner diameter R of the inner ring installation part of the finished rim 2 , calculate the width W of the finished rim 0 , where W 0 =R 1 -R 2 ; Compare whether the width W of the finished rim 0 is within the preset finished rim width range [W min , W max ;

[0037] If the width W of the finished rim 0 is within the preset finished rim width range [W min , W max , output the first width signal; if the width W of the finished rim 0 is less than the preset minimum finished rim width W min , output the second width signal; if the width W of the finished rim 0 is greater than the preset maximum finished rim width W max , output the third width signal.

[0038] Furthermore, in the detection step, it includes:

[0039] Receive the first width signal, then determine that the width W of the finished rim 0 is correct, and send a width detection pass instruction;

[0040] Receive the second width signal, then determine that the width W of the finished rim 0 is too small, and send the first machining parameter adjustment instruction to adjust the parameters of the machining step;

[0041] Receive the third width signal, then determine that the width W of the finished rim 0 is too large, and send the second machining parameter adjustment instruction to adjust the parameters of the machining step.

[0042] Furthermore, in the detection step, it includes:

[0043] Measure the radial runout J of the finished rim 1 , measure the axial runout J of the finished rim 2 , calculate the comprehensive runout S of the finished rim, where

[0044] Compare whether the comprehensive runout S of the finished rim is within the preset comprehensive runout range of the finished rim [0, S max ;

[0045] If the comprehensive runout S of the finished rim is within the preset comprehensive runout range of the finished rim [0, S max , then output the first comprehensive runout signal; if the comprehensive runout S of the finished rim is greater than the maximum value S of the preset comprehensive runout of the finished rim max , then output the second comprehensive runout signal.

[0046] Further, in the detection step, it includes:

[0047] Receive the first comprehensive runout signal, then determine that the comprehensive runout S of the finished rim is correct, and send a comprehensive runout detection pass instruction;

[0048] Receive the second comprehensive runout signal, then determine that the comprehensive runout S of the finished rim is too large, and send a correction instruction to extrude and / or stretch the finished rim to adjust the comprehensive runout S of the finished rim to be within the preset comprehensive runout range of the finished rim [0, S max ;

[0049] Further, in the detection step, it includes:

[0050] Measure the roughness Ra of the finished rim 1 ; Compare with the preset roughness Ra of the finished rim 2 ; Calculate the roughness ratio γ of the roughness Ra of the finished rim 1 and the preset roughness Ra of the finished rim 2 , where

[0051]

[0052] Judge whether the roughness ratio γ is less than or equal to the preset roughness ratio γ 0 ;

[0053] If the roughness ratio γ is less than or equal to the preset roughness ratio γ 0 , then output the first roughness signal; if the roughness ratio γ is greater than the preset roughness ratio γ 0 , then output the second roughness signal;

[0054] Receive the first roughness signal, then determine that the roughness Ra of the finished rim 1 is correct, and send a roughness detection pass instruction; receive the second roughness signal, then determine that the roughness Ra of the finished rim 1 is too large, and send a polishing instruction to polish the finished rim to adjust the roughness Ra of the finished rim 1Less than or equal to the preset roughness ratio γ 0 .

[0055] The beneficial effects of the present invention are as follows:

[0056] Use a T-shaped aluminum plate to make the initial blank; then roll it into a circle, flatten it, and make it flush to form the second flat surface; weld the second flat surface; then grind and round the welded part to form a formed cylindrical blank; cut off the two end faces of the formed cylindrical blank along the axial direction to form an end-cut cylindrical blank; flare and expand, perform a flared expansion deformation on the end-cut cylindrical blank to form an initial rim, improving the accuracy in the rim manufacturing process; spin-forge, perform a spin-forging forming on the initial rim to form a first semi-finished rim; perform a solution aging treatment on the first semi-finished rim to shorten the manufacturing time of the rim, and perform a secondary spin-forging treatment to form a second semi-finished rim; perform a machining treatment on the second semi-finished rim to form a finished rim, and detect its dimensional parameters to improve the yield rate and save costs. It can improve the accuracy of manufacturing the rim, shorten the manufacturing time of the rim, improve the yield rate, and save costs. Description of the Drawings

[0057] Figure 1 It is a process step diagram for manufacturing a rim using a T-shaped plate in an embodiment of the present invention;

[0058] Figure 2 It is a schematic structural diagram of the initial blank for the process of manufacturing a rim using a T-shaped plate in an embodiment of the present invention;

[0059] Figure 3 It is a schematic structural diagram of the initial cylindrical processing blank for the process of manufacturing a rim using a T-shaped plate in an embodiment of the present invention;

[0060] Figure 4 It is a schematic structural diagram of the initial cylindrical processing blank after flattening treatment for the process of manufacturing a rim using a T-shaped plate in an embodiment of the present invention;

[0061] Figure 5 It is a schematic structural diagram of the welded cylindrical blank for the process of manufacturing a rim using a T-shaped plate in an embodiment of the present invention;

[0062] Figure 6 It is a schematic diagram of the state of flare and expansion for the process of manufacturing a rim using a T-shaped plate in an embodiment of the present invention;

[0063] Figure 7 It is a schematic diagram of the state of spin-forging treatment for the process of manufacturing a rim using a T-shaped plate in an embodiment of the present invention.

[0064] Description of the Reference Numerals:

[0065] S1. Blanking; S2. Roll forming; S3. Flattening; S4. Levelling; S5. Cleaning; S6. Straight welding; S7. Grinding; S8. Re-rounding; S9. End cutting; S10. Flaring and bulging; S11. Spinning; S12. Heat treatment; S13. Machining; S14. Inspection; 1. Protrusion; 2. First flat surface; 11. Initial rim; 12. First semi-finished rim. Detailed implementation manners

[0066] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0067] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0068] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0069] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this application is usually placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0070] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0071] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0072] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0073] Please refer to Figures 1 to 7 , an embodiment of the present application provides a process for manufacturing a rim using a T-shaped plate. The process includes using a T-shaped aluminum plate to make an initial blank; then performing curling, flattening, and leveling to form a second flat surface; welding the second flat surface; then grinding and rounding the welded part to form a formed cylindrical blank; cutting off both end faces of the formed cylindrical blank in the axial direction to form an end-cut cylindrical blank; flaring and bulging to perform a flaring deformation on the end-cut cylindrical blank to form an initial rim 11, improving the accuracy in the rim manufacturing process; spinning to perform a spinning forming on the initial rim 11 to form a first semi-finished rim 12; performing a solution aging treatment on the first semi-finished rim 12 to shorten the manufacturing time of the rim, and then performing a secondary spinning treatment to form a second semi-finished rim; performing a machining treatment on the second semi-finished rim to form a finished rim, and detecting its dimensional parameters to improve the yield rate and save costs. It can improve the accuracy of manufacturing the rim, shorten the manufacturing time of the rim, improve the yield rate, and save costs.

[0074] A process for manufacturing a rim using a T-shaped plate provided by this solution includes the following steps:

[0075] S1: Blanking, cutting the T-shaped aluminum plate according to a preset size to form an initial blank.

[0076] It can be known that the T-shaped aluminum plate has a protrusion 1, and the initial blank is rectangular as a whole. At the same time, according to the requirements of the rim, aluminum plates with different material properties are selected.

[0077] S2: Curling, curling the initial blank inward into a cylindrical shape to form an initial cylindrical processed blank, and the two ends of the initial cylindrical processed blank are closed, and the protrusion 1 of the initial blank is located inside the initial cylindrical processed blank.

[0078] It should be noted that during the curling process, there should be no distortion, and the integrity and smoothness of the initial cylindrical processed blank should be maintained.

[0079] S3: Flattening, performing a flattening treatment on the closed part at both ends of the initial cylindrical processed blank to form a first flat surface 2.

[0080] It should be noted that the degree of flattening, that is, the area of the first flat surface 2, is not limited here and can be freely adjusted according to the actual situation.

[0081] S4: Leveling, performing a leveling treatment on the first flat surface 2 to form a second flat surface, and the middle gap of the second flat surface ≤ 0.3 mm.

[0082] It should be noted that a leveling machine is used to level the first leveling surface 2 to form a second leveling surface.

[0083] S5: Cleaning, cleaning the second leveling surface to remove dirt.

[0084] It can be understood that cleaning the second leveling surface is mainly to remove dirt, including oil stains, impurities, etc., to ensure the cleanliness of the second leveling surface and improve the stability of welding.

[0085] S6: Straight welding, using a straight welding machine to weld the cleaned second leveling surface to form a welded cylindrical blank.

[0086] It should be noted that the welded cylindrical blank formed by welding becomes the truly connected cylindrical material.

[0087] S7: Grinding, grinding the welding joint of the welded cylindrical blank.

[0088] It should be noted that grinding the flash and the like generated during the welding process reduces the risk of crack propagation.

[0089] S8: Re-rounding, performing re-rounding treatment on the ground welded cylindrical blank to form a formed cylindrical blank.

[0090] It should be noted that performing re-rounding treatment on the ground welded cylindrical blank ensures the smoothness of the formed cylindrical blank.

[0091] S9: End cutting, cutting off the two end faces of the formed cylindrical blank in the axial direction to form an end-cut cylindrical blank.

[0092] It should be noted that the formed cylindrical blank is cut to a suitable size by end cutting to facilitate the subsequent process.

[0093] S10: Flaring and bulging, performing flaring and bulging deformation on the end-cut cylindrical blank to form an initial rim 11.

[0094] It should be noted that this step adopts two flaring and bulging processes to ensure that the initial rim 11 is deformed in place.

[0095] This step specifically includes:

[0096] Measuring the initial diameter D of the end-cut cylindrical blank 0 , measuring the length L of the end-cut cylindrical blank, and calculating the theoretical diameter D of the initial rim 11 through the following formula 理 , D 理 = D 0 + k × ΔP × L, where k represents the coefficient related to the material, and ΔP represents the applied pressure change;

[0097] Measure the actual diameter D of the initial rim 11 实 , calculate the actual diameter D of the initial rim 11 实 and the theoretical diameter D of the initial rim 11 理 to obtain the precision error q, and determine whether the precision error q is less than 0.1%; if the precision error q is less than or equal to 0.1%, output the first precision signal; if the precision error q is greater than 0.1%, output the second precision signal.

[0098] Measure the force F applied to the end-cut cylindrical blank, measure the force-bearing area A of the end-cut cylindrical blank, and calculate the applied pressure change ΔP according to the formula

[0099] If the first precision signal is received, it is determined that the actual diameter D of the initial rim 11 实 is correct, and a stable signal is output to keep the force F applied to the end-cut cylindrical blank stable; if the second precision signal is received, it is determined that the actual diameter D of the initial rim 11 实 is incorrect, and an adjusted force signal is output to adjust the force F applied to the end-cut cylindrical blank.

[0100] This step further includes:

[0101] Measure the flaring angle θ of the initial rim 11 1 , compare it with the preset flaring angle θ of the initial rim 11 2 , calculate the flaring angle θ of the initial rim 11 1 and the angle deviation δ from the preset flaring angle θ of the initial rim 11 2 , where

[0102] Determine whether the angle deviation δ is less than 0.1%; if the angle deviation δ is less than or equal to 0.1%, output the first deviation signal; if the angle deviation δ is greater than 0.1%, output the second deviation signal.

[0103] If the first deviation signal is received, it is determined that the flaring angle θ of the initial rim 11 1 is correct, and a passing instruction is sent to enable the spinning step; if the second deviation signal is received, it is determined that the flaring angle θ of the initial rim 11 1 is incorrect, and a pause instruction is sent, and the flaring angle θ of the initial rim 11 1 is adjusted;

[0104] Based on the pause instruction, determine whether the flaring angle θ of the initial rim 11 1 is too large or too small; if the flaring angle θ of the initial rim 11 1 is too large, perform a positive flaring correction on the initial rim 11; if the flaring angle θ of the initial rim 11 1If it is too small, the initial rim 11 is corrected by reverse flaring.

[0105] S11: Spinning, the initial rim 11 is spun formed to form the first semi-finished rim 12.

[0106] It should be noted that a spinning machine and a special spinning die are used to spin form the end of the initial rim 11.

[0107] S12: Heat treatment, the first semi-finished rim 12 is solution-aged and then subjected to secondary spinning to form the second semi-finished rim.

[0108] It should be noted that solution treatment is first carried out through a heat treatment furnace, and the solution time and temperature are controlled; then, through secondary spinning, the deformation caused by heat treatment is repaired; finally, aging treatment is first carried out through the heat treatment furnace, and the aging time and temperature are controlled.

[0109] S13: Machining, the second semi-finished rim is machined to form the finished rim.

[0110] It should be noted that processes such as turning, filing, planing, milling, and grinding are used to machine the second semi-finished rim to form the finished rim.

[0111] S14: Inspection, the dimensional parameters of the finished rim are inspected.

[0112] This step specifically includes:

[0113] Measure the outer diameter R of the finished rim 1 , measure the inner diameter R of the inner ring installation part of the finished rim 2 , calculate the width W of the finished rim 0 , where W 0 = R 1 - R 2 ; Compare whether the width W of the finished rim 0 is within the preset finished rim width range [W min , W max ;

[0114] If the width W of the finished rim 0 is within the preset finished rim width range [W min , W max , then output the first width signal; if the width W of the finished rim 0 is less than the preset minimum finished rim width W min , then output the second width signal; if the width W of the finished rim 0 is greater than the preset maximum finished rim width W max , then output the third width signal.

[0115] Upon receiving the first width signal, determine the width W of the finished rim 0 is correct and send a width detection pass instruction; upon receiving the second width signal, determine the width W of the finished rim 0 is too small and send a first machining parameter adjustment instruction to adjust the parameters of the machining step; upon receiving the third width signal, determine the width W of the finished rim 0 is too large and send a second machining parameter adjustment instruction to adjust the parameters of the machining step.

[0116] This step further includes:

[0117] Measure the radial runout J of the finished rim 1 , measure the axial runout J of the finished rim 2 , calculate the comprehensive runout S of the finished rim, where compare whether the comprehensive runout S of the finished rim is within the preset comprehensive runout range of the finished rim [0, S max ;

[0118] If the comprehensive runout S of the finished rim is within the preset comprehensive runout range of the finished rim [0, S max , output a first comprehensive runout signal; if the comprehensive runout S of the finished rim is greater than the maximum value S of the preset comprehensive runout of the finished rim max , output a second comprehensive runout signal.

[0119] Upon receiving the first comprehensive runout signal, determine that the comprehensive runout S of the finished rim is correct and send a comprehensive runout detection pass instruction; upon receiving the second comprehensive runout signal, determine that the comprehensive runout S of the finished rim is too large and send a correction instruction to extrude and / or stretch the finished rim to adjust the comprehensive runout S of the finished rim to be within the preset comprehensive runout range of the finished rim [0, S max ;

[0120] This step further includes:

[0121] Measure the roughness Ra of the finished rim 1 ; compare with the preset roughness Ra of the finished rim 2 ; calculate the roughness ratio γ of the roughness Ra of the finished rim 1 and the preset roughness Ra of the finished rim 2 , where judge whether the roughness ratio γ is less than or equal to the preset roughness ratio γ 0 ; if the roughness ratio γ is less than or equal to the preset roughness ratio γ 0 , output a first roughness signal; the roughness ratio γ is greater than the preset roughness ratio γ 0, then output the second roughness signal;

[0122] Receive the first roughness signal, then determine the roughness Ra of the finished rim 1 is correct, and send a roughness detection pass instruction; receive the second roughness signal, then determine the roughness Ra of the finished rim 1 is too large, and send a polishing instruction to polish the finished rim to adjust the roughness Ra of the finished rim 1 is less than or equal to the preset roughness ratio γ 0 .

[0123] The following introduces the principle of the process for manufacturing a rim using a T-shaped plate provided in this embodiment:

[0124] Blanking, cutting the T-shaped aluminum plate according to the preset size to form an initial blank; rolling into a circle, curling the initial blank inward into a cylindrical shape to form an initial cylindrical workpiece, and the two ends of the initial cylindrical workpiece are closed, and the convex part 1 of the initial blank is located inside the initial cylindrical workpiece; flattening, flattening the closed part at both ends of the initial cylindrical workpiece to form a first flat surface 2; leveling, leveling the first flat surface 2 to form a second flat surface, and the middle gap of the second flat surface ≤ 0.3 mm; cleaning, cleaning the second flat surface to remove dirt; straight welding, using a straight welder to weld the cleaned second flat surface to form a welded cylindrical workpiece; grinding, grinding the welded part of the welded cylindrical workpiece; restoring to a circle, performing a restoring-to-circle treatment on the welded cylindrical workpiece after grinding to form a formed cylindrical workpiece; end cutting, cutting off the two end faces of the formed cylindrical workpiece in the axial direction to form an end-cut cylindrical workpiece; flaring and bulging, performing a flaring deformation on the end-cut cylindrical workpiece to form an initial rim 11; spinning, performing a spinning forming on the initial rim 11 to form a first semi-finished rim 12; heat treatment, performing a solution aging treatment on the first semi-finished rim 12 and subjecting it to a secondary spinning treatment to form a second semi-finished rim; machining, performing a machining treatment on the second semi-finished rim to form a finished rim; detecting, detecting the dimensional parameters of the finished rim.

[0125] In summary, the main effective effects of the embodiments provided by the present invention are:

[0126] Use a T-shaped aluminum plate to make the initial blank; then roll it into a circle, flatten it, and make it flush to form the second flat surface; weld the second flat surface; then grind and round the welded part to form a formed cylindrical blank; cut off the two end faces of the formed cylindrical blank along the axial direction to form an end-cut cylindrical blank; flare and expand to perform a trumpet-shaped expansion deformation on the end-cut cylindrical blank to form an initial rim, improving the accuracy in the rim manufacturing process; spin-forge to perform spin-forging on the initial rim to form a first semi-finished rim; perform solution aging treatment on the first semi-finished rim to shorten the manufacturing time of the rim, and perform secondary spin-forging treatment to form a second semi-finished rim; perform machining treatment on the second semi-finished rim to form a finished rim, and detect its dimensional parameters to improve the yield rate and save costs. It can improve the accuracy of rim manufacturing, shorten the manufacturing time of the rim, improve the yield rate, and save costs.

[0127] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0128] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A process for making a rim using a T-shaped plate, characterized in that: include: Cutting: cutting the T-shaped aluminum plate according to the preset size to form the initial blank; Rolling, rolling the initial blank inward into a cylindrical shape to form an initial cylindrical processed material, with the two ends of the initial cylindrical processed material closed, and the protrusion of the initial blank located at the inner circle of the initial cylindrical processed material; Flattening: Flattening the two ends of the initial cylindrical material to form a first flat surface; Flush, the first flat surface is flushed to form a second flat surface, and the gap in the middle of the second flat surface is ≤0.3mm; Cleaning: cleaning the second flat surface to remove dirt; Direct welding: welding the cleaned second flat surface with a direct welding machine to form a welding tube material; Grinding: grinding the welding part of the welding cylinder material; Re-rounding, re-rounding the polished welding cylinder material to form a formed cylinder material; End cutting, cutting off the two end surfaces of the formed cylindrical material along the axial direction to form an end-cut cylindrical material; Expanding and deforming the end-cut cylindrical material into a trumpet shape to form an initial rim; Spinning, spinning the initial rim to form a first semi-finished rim; Heat treatment, performing solution aging treatment on the first semi-finished rim, and performing secondary spinning treatment to form a second semi-finished rim; Machining: performing machining on the second semi-finished rim to form a finished rim; Detection: Dimensional parameters of the finished rim are detected.

2. The process for making a wheel rim using a T-shaped plate as claimed in claim 1, characterized in that: The step of expanding and shaping includes: Measure the initial diameter D0 of the end-cut cylindrical material, measure the length L of the end-cut cylindrical material, and calculate the theoretical diameter D of the initial rim by the following formula: 理 , D 理 =D0+k×ΔP×L, k represents the coefficient related to the material, and ΔP represents the change in applied pressure; Measure the actual diameter D of the initial rim 实 , calculate the actual diameter D of the initial rim 实 The theoretical diameter D of the initial rim 理 The precision error q, Determine whether the precision error q is less than 0.1%; if the precision error q is less than or equal to 0.1%, output a first precision signal; if the precision error q is greater than 0.1%, output a second precision signal.

3. The process for making a wheel rim using a T-shaped plate as claimed in claim 2, characterized in that: The step of expanding and shaping includes: The force F applied to the end-cut cylindrical material is measured, the force-bearing area A of the end-cut cylindrical material is measured, and the applied pressure change ΔP is calculated according to the formula, After receiving the first precision signal, the actual diameter D of the initial rim is determined. 实 correct, and output a stable signal to keep the force F applied to the end-cut cylindrical material stable; receiving the second precision signal, the actual diameter D of the initial rim is determined 实 If there is an error, an adjustment force signal is output to adjust the force F applied to the end-cut cylindrical material.

4. The process for making a wheel rim using a T-shaped plate as claimed in claim 1, characterized in that: The expansion step further includes: The expansion angle θ1 of the initial wheel rim is measured, compared with the expansion angle θ2 of the preset initial wheel rim, and the angle deviation δ between the expansion angle θ1 of the initial wheel rim and the expansion angle θ2 of the preset initial wheel rim is calculated, wherein It is determined whether the angle deviation δ is less than 0.1%; if the angle deviation δ is less than or equal to 0.1%, a first deviation signal is output; if the angle deviation δ is greater than 0.1%, a second deviation signal is output.

5. The process for making a wheel rim using a T-shaped plate as claimed in claim 4, characterized in that: The step of expanding and shaping includes: Upon receiving the first deviation signal, it is determined that the flaring angle θ1 of the initial wheel rim is correct, and a pass instruction is sent, and the spinning step can be performed; upon receiving the second deviation signal, it is determined that the flaring angle θ1 of the initial wheel rim is incorrect, and a pause instruction is sent, and the flaring angle θ1 of the initial wheel rim is adjusted; According to the pause instruction, it is determined whether the flaring angle θ1 of the initial rim is too large or too small; if the flaring angle θ1 of the initial rim is too large, a positive flaring correction is performed on the initial rim; if the flaring angle θ1 of the initial rim is too small, a reverse flaring correction is performed on the initial rim.

6. The process for making a wheel rim using a T-shaped plate as claimed in claim 1, characterized in that: The detection step includes: Measure the outer diameter R1 of the finished rim, measure the inner diameter R2 of the inner ring installation part of the finished rim, calculate the width W0 of the finished rim, where W0=R1-R2; compare whether the width W0 of the finished rim is within the preset finished rim width range [W min , W max ]; If the width W0 of the finished rim is within the preset finished rim width range [W min , W max ], then output a first width signal; if the width W0 of the finished rim is less than the preset minimum width W of the finished rim min , then output a second width signal; if the width W0 of the finished rim is greater than the preset maximum width W of the finished rim max , then a third width signal is output.

7. The process for making a wheel rim using a T-shaped plate as claimed in claim 6, characterized in that: The detection step includes: Upon receiving the first width signal, it is determined that the width W0 of the finished rim is correct, and a width detection pass instruction is sent; Upon receiving the second width signal, determining that the width W0 of the finished rim is too small, and sending a first machining parameter adjustment instruction to adjust the parameters of the machining step; When the third width signal is received, it is determined that the width W0 of the finished rim is too large, and a second machining parameter adjustment instruction is sent to adjust the parameters of the machining step.

8. The process for making a wheel rim using a T-shaped plate as claimed in claim 1, characterized in that: The detection step includes: Measure the radial runout J1 of the finished rim, measure the axial runout J2 of the finished rim, and calculate the comprehensive runout S of the finished rim, where Compare the comprehensive runout S of the finished rim to see whether it is within the preset comprehensive runout range of the finished rim [0, S max ]; If the comprehensive runout S of the finished rim is within the preset comprehensive runout range of the finished rim [0, S max ], then output the first comprehensive runout signal; if the comprehensive runout S of the finished rim is greater than the maximum value S of the preset comprehensive runout of the finished rim max , then the second comprehensive jitter signal is output.

9. The process for making a wheel rim using a T-shaped plate as claimed in claim 8, characterized in that: The detection step includes: Upon receiving the first comprehensive run-out signal, it is determined that the comprehensive run-out S of the finished wheel rim is correct, and a comprehensive run-out detection pass instruction is sent; After receiving the second comprehensive runout signal, it is determined that the comprehensive runout S of the finished wheel rim is too large, and a correction instruction is sent to squeeze and / or stretch the finished wheel rim to adjust the comprehensive runout S of the finished wheel rim to be within the preset finished wheel rim comprehensive runout range [0, S max ]between.

10. The process for making a wheel rim using a T-shaped plate as claimed in claim 1, characterized in that: The detection step includes: Measure the roughness Ra1 of the finished rim; compare it with the roughness Ra2 of the preset finished rim; calculate the roughness ratio γ of the roughness Ra1 of the finished rim to the roughness Ra2 of the preset finished rim, where Determine whether the roughness ratio γ is less than or equal to a preset roughness ratio γ0; If the roughness ratio γ is less than or equal to the preset roughness ratio γ0, a first roughness signal is output; if the roughness ratio γ is greater than the preset roughness ratio γ0, a second roughness signal is output; When the first roughness signal is received, it is determined that the roughness Ra1 of the finished wheel rim is correct, and a roughness detection pass instruction is sent; when the second roughness signal is received, it is determined that the roughness Ra1 of the finished wheel rim is too large, and a polishing instruction is sent to polish the finished wheel rim to adjust the roughness Ra1 of the finished wheel rim to be less than or equal to the preset roughness ratio γ0.

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